Safety device for rolling stock



W. S. ARLESKIE.

SAFETY DEVICE FOR ROLLING STOCK APPLICATION FILED DEC. :0, 192:.

Patented May 23, W22.

2 SHEETS-SHEET 1.

W. S. ARLESKIE- SAFETY DEVICE FOR ROLLING STOCK.

APPLICATION FILED DEC. I0, I92]- IAJI MQBI Patented y 23, W2.

. 2 SHEETS-SHEET 2- 3 name nto z SAFETY DEVICE FOR ROLLING STOCK.

intense.

Application filed December 10, 1921.

To (all 107mm it may concern:

Be it known that 1, WILLIAM S. Annnsmn, a citizen of. the United States,residing at Pitt-ston, in the county of Luzerne and State ofPennsylvania, have invented certain new and useful Improvements inSafety Devices for Rolling Stock, of which the following is aspecification, reference being had to the accompanying drawings.

This invention relates to certain improvements in safety devices forrolling stock and has relation more particularly to a device of thisgeneral character especially designed and adapted for use in connectionwith the main line of an. airbralre system, and it is primarily anobject of theinvention to provide a noveland improved device of thisgeneral character which operates to release the air to set the brakes inthe event a wheel of the rolling stock should jump the track or in theevent thebody of the car should have undue lateral swinging movement,such as may result in traversing a curve at too high a speed.

Another object of the invention is to provide a novel and improveddevice of this general character particularly adapted for use with amotor, such as a locomotive, and in association with the forward wheelsof said motor, said device operating, in the event one of said wheelsjumpsthe traclgto open the train line to set the brakes.

llurthermore, it is an. object of the invention to provide a novel, andimproved device of this general characterwhich is normally held inpositionupon the operating handle of a normally closed valve and whichdevice, in the event a wheel: should. jump the track or the body of therolling stock have undue lateral swinging movement, will cause the valveto move into open position, the mounting of the device upon theoperating handle of the valve being such to permit said device todisengage from said operating handle should the'drop ofthe wheel beexcessive,.thereby preventing 1njury to the train line or other parts ofthe brake system. i p 1 i i The invention consists in the details ofconstruction and in the combination and arrangement of the several partsof my improved safety device whereby certain 1mportant advantages areattamed and the device rendered simpler, less expensive andSpecification of Letters Patent.

Patented May 33, itmdi.

Serial No. 521,387.

otherwise more convenient and advantageous for use, as will behereinafter more fully set forth.

The novel features of my invention will hereinafter be definitelyclaimed.

In order that my invention may he the better understood, I will nowproceed to describe the same with reference to the accompanyingdrawings, wherein:

Figure 1 is a fragmentary view in side elevation and of a diagrammaticcharacter illustrating a safety device constructed in accordance with anen'lbodiment of my invention; and applied in connection with a motorhaving a single pair of front wheels;

l igure 2 is a diagrammatic view in top plan of the structure asillustrated in Figure 1;

Figure 3 is an enlarged fragmentary view partly in section and partly inelevation illustrating the operative connection. of my improved devicewith theoperating handle for the normally closed valve;

Figure 4 is a fragmentary diagrammatic view in side elevationillustrating my invention employed in connection with a loco motive ormotor having two pairs of front wheels; and

Figure 5 is a diagrammatic view in top plan of the structure disclosedin Figure 4;.

[is disclosed in the accompanying drawings, L diagraunnaticallyindicates the forward or front portion of a locomotive or other motorhaving associated therewitha single pair of supporting wheels W. M denots a portion of the main line of" an air brake system of a conventionalor well known type. 1 denotes an equalizing plate of a conventional typecoacting with each of the wheels W.

The pipe line: M at the forward portion of the locomotive or motor L hasin communication therewith a branch pipe 1 disposed in such direction asto extend above a wheel W and across the axis thereof. 2 denotes asecond branch pipe in communication with the pipe line M, said branchpipe2 extending transversely of the forward portion of the locomotive ormotor L and terminating in a portion positioned a desired distance abovethe second wheel W and. extending across the axis of said wheel.

llach of the branches 1 and 2 inwardly of but in close proximity to thevertical center of the adjacent wheel lV has interposed therein anormally closed valve 3. The valve 3 is provided with an operatinghandle 4-. which, when the valve 3 is in its normal or closed position,extends forwardly of the locomotive or motor L and intersects thelongitudinal plane through the axis of the adjacent wheel W.

Slidably mounted upon each of the operating handles l is an elongatedsleeve 5, opposed walls of said sleeve 5 being provided with openings 6which, when the sleeve 5 is in applied position upon an operating handlea, is in register with an opening 7 disposed through said operatinghandle. The member 4- is angular in cross section and the bore of thesleeve 5 is of corresponding cross section so that when the sleeve 5 isapplied to the handle at, the same are held against relative rotarymovement. Extending through the registering openings 6 and 7 is a wirepin 8, preferably of copper. It is to be understood. however, that thepin 8 may be formed of any fragile material which can be used withconvenience and facility.

The applied pin 8 serves to hold the sleeve 5 against displacement uponthe handle 4; and offers sufficient resistance to cause normal strainimposed upon the sleeve 5 to swing the handle 4 in a direction to bringthe valve 3 into open position. As particularly illustrated in Figure 3,the opposite extremities of the pin 8 are angularly disposed or bent sothat the same is held in working position.

The outer end portion of the sleeve 5 is flattened to provide aperforated ear or lug 9 to which issecured an extremity of a flexiblemember 10, preferably a chain. The opposite end portion of the flexiblemember or chain 10 is secured to a bracket 11 fixed to an equalizerplate P.

Under normal conditions, the flexible member or chain 10 possessessufficient slack to compensate for the vibrations of the body of thelocomotive or motor L incident to travel or in making turn but, in theevent a wheel N should jump a rail, the resultant drop of the wheel andof the equalizing plate P will impose suflicient pull or strain upon theassociated flexible member or chain 10 to swing the operating handle asufficient to bringthe valve 3 into open position, whereupon the line Mis open to the atmosphere resulting in the required reduction ofpressure to cause the setting of the brakes.

Upon undue strain being imposed upon the sleeve 5 upon the dropping of awheel W, after the handle 4 has been swung downwardly into asubstantially vertical position, will result in the shearing off of thepin 8 so that the sleeve 5 will be readily disengaged from the handle 4.By this provision, it will be at once understood that the valve 3 may beswung into open position with the possibility substantially cliniinalcdof the branch 1 or 2 or the main pipe line lil being broken or otherwiseinjured.

The free end portion of nch ol' the branches 1 and 2 forwardly of thevalve 3 is held by a bracket 12 or the like.

It will be understood that the device will also operate to move a valve3 into open position in the event that the body o l' the locomotive ormotor L has undue lateral swing ing movement, especially as the resultof traversing a curve at excessive speed. lily excessive lateralmovement, it is to be understood that I particularly refer to tii ppingof the locomotive or motor.

In the embodiment of my invention as illustrated in Figure l, I show myinvention applied to a locomotive or motor L of a type wherein theforward portion thereof has associated therewith two pairs of wheels TV,said wheels being; carried in a. conventional manner by a pony truck 'l.The main pipe line M has in communication therewith a pair of branches land a second pair of branches 2, each of said branches '1 and 2 beingassociatci'l with a wheel W in substantially the same manner as hashcrciubcl'ore been set forth with respect to the branches 1 and 2.interposed therein a normally open valve $3 in the same position as hashereinbefore been stated with respect to the valves 3.

Each of the valves 3 has engaged with the operating" handle at thereof asleeve 5. The sleeve 5 is constructed in the same manner as has beenbefore explained in connection with a sleeve 5. Each of the sleeves 5connected by a flexible member or chain '10 with a side sill 1st of thetruck 'l, so that in the event a wheel lV should jump a rail. theadjacent flexible member or chain It) will operate through theinstrumentality of the sleeve 5' to move the normally closed valve 3'into open position so that the prcssure within the line M will bereduced to effect the required setting of tho braluis.

From the foregoing; description it is thought to be obvious that a sal'cty device for rolling; stock constructed in acrordaucc with myinvention is particularly well adapted for use by reason of theconvenience and facility with which it may be assembled and operated,and it will also be obvious that my invention is susceptible of somechange and modification without departing from the principles and spiritthereof and for this reason I do not wish to be understood as limitingmyself to the precise arraiurenicnt and formation of the several partsheroin shown in carrying out my invention in pram tice except ahereinafter claimed.

I claim:

1. The combination with a vehicle. a

inountingr for a wheel therefor, and a pipe Each of the branches l. and2 has.

amaze line for an air brake system carried by said vehicle; of anormally closed valve associated with said pipe line, an operatingmember for the valve, and a fragile connection between the operatingmember and the mounting for the Wheel.

2. The combination with a vehicle, a mounting for a Wheel therefor, anda pipe line for an air brake system carried by said vehicle; of anormally closed valve associated with said pipe line, an operatingmember for the valve, and a flexible member connecting the operatingmember and the mounting for the Wheel, saiol flexible member beingnormally slack, the connection of the line for an air brake systemcarried by said 20 vehicle; of a normally closed valve associated withsaid pipe line, an operating member for the valve, a sleeve engageableWith the operating member for the valve, a fragile member connecting thesleeve and operating 25 member, and a connection between the Sleeve andthe mounting for the Wheel.

In testimony whereof I hereunto affix my signature.

WILLIAM S. ARIJESKIE.

